Skip to content 
energy hunter application
Savings in electricity
- Energy Hunter – HVAC - Chiller condenser protection
- Energy Hunter – HVAC - AHRI performance certification
- Energy Hunter – HVAC - Free cooling with chiller bypass
- Energy Hunter – HVAC - Energy savings in ammonia chillers and heat pumps
Savings in fuel costs
- Energy Hunter – Utilities - Heat recovery from air compressors
- Energy Hunter – Utilities - Heat recovery from warm wastewater
- Energy Hunter – Utilities - Heat recovery from waste flash steam
- Energy Hunter – Utilities - Boiler protection
- Energy Hunter – Utilities - Heat recovery from open cooling tower
Savings with efficiency and uptime
- Energy Hunter – Utilities - Cooling tower interchanger
- Energy Hunter – Utilities - Shell-and-tube replacement
- Energy Hunter – Utilities - Air compressor heat exchanger replacement
Energy Hunter – HVAC - Chiller condenser protection
The condenser of a chiller using open cooling tower water is prone to develop a layer of CaCO3. Rule of thumb in the industry is that a 1 mm coating of CaCO3 inside the tubes, can mean 3°C higher condensation temperature of the refrigerant gas at the condenser. This equates to approximately 10% higher condensation pressure and higher electricity consumption of the compressor.
Energy Hunter – Utilities - Heat recovery from air compressors
72% is the conversion of electricity to waste heat with air compressors. Compressed air and lubricating oil are often cooled with in built heat exchangers, releasing the heat to the atmosphere. Cooling the air also helps the dryer run effectively, reducing moisture content for critical air equipment.
Energy Hunter – Utilities - Cooling tower interchanger
Plant cooling equipment protection from open cooling tower mineral deposits CaCO3 and Chloride ions, minimum fouling from debris. Savings are in maintenance-free operation of plant equipment, lower pumping costs avoiding pipe diameter reduction and replacement of corroded equipment.
Energy Hunter – HVAC - AHRI performance certification
Can you accurately measure 0.5°C? What happens to the operation of the chiller if the installed pressure breaker gasketed plate heat exchanger under performs by 0.5 °C? Lower evaporation temperatures lead to higher lift with the chiller compressor and increasing electricity consumption of up to 3%. Installing Performance Certified gasketed plate heat exchangers provides a payback period of under three years.
Energy Hunter – Utilities - Heat recovery from warm wastewater
With Alfa Laval wide gap plate technology, heat recovery is efficient at the same time blockage free for wastewater containing < 5 mm particles or fibres. Wastewater temperatures as low as 35°C and as low 10 m³ per hour can save 175 kilowatts (150,000 kCal/hr) with a payback period of less than six months, preheating the boiler feed water to 30°C.
Energy Hunter – Utilities - Shell-and-tube replacement
Based on the right channel type of gasketed plate heat exchanger and proportional heat surface area. Savings are with less footprint – including removal space for tube bundle, less hold up volume hence faster response times, easier and quicker maintenance and heat losses to the atmosphere from the shell-and-tube surface.
Energy Hunter – HVAC - Free cooling with chiller bypass
A chiller is one of the highest running cost equipment in many plants. Those with a water-cooled condenser can win in two ways with an Alfa Laval gasketed plate heat exchanger. One to protect the chiller from CaCO3 coating on the tubes, saving electricity with lower condensing temperature and pressure and the other is by turning the chiller off up to 30 days per year, depending on the geographic location and the wet-bulb temperature. AHRI Performance Certification is vital as approach temperatures of 1°C are needed and who can measure 0.5°C!
Energy Hunter – Utilities - Heat recovery from waste flash steam
All industries using steam as a heat source have problems with steam management. With a simple cyclone separator at the condensate collection point, flash steam can be condensed, heating water up to 80°C. Recovering 500 kg per hour of flash steam can save up to 5,000 Euro per month. The return on investment is less than 3-6 months.
Energy Hunter – Utilities - Air compressor heat exchanger replacement
The in-built heat exchangers delivered with the air compressor, require the open cooling tower to be a well-maintained, regularly flushed and treated, to avoid accumulation of calcium carbonate and chloride ions. If not, the brazed plate heat exchanger or shell-and-tube, could fail and require urgent replacement. A gasketed plate heat exchanger can be offered as a solution, that is more durable, against the harmful effects of calcium carbonate and chloride ions.
Energy Hunter – HVAC - Energy savings in ammonia chillers and heat pumps
The condenser and evaporator of the chiller can either be of an air heat exchanger type or be cooled/heated by e.g. glycol, brine or water. By utilizing the later technology, the refrigerant charge can be kept to a minimum and the complete refrigeration system can be placed in one machine room connected to air coolers, energy wells, dry-coolers through secondary systems using a less sensitive media such as water, glycol or even CO2.
Energy Hunter – Utilities - Heat recovery from waste flash steam
All industries using steam as a heat source have problems with steam management. With a simple cyclone separator at the condensate collection point, flash steam can be condensed, heating water up to 80°C. Recovering 500 kg per hour of flash steam can save up to 5,000 Euro per month. The return on investment is less than 3-6 months.
Energy Hunter – Utilities - Air compressor heat exchanger replacement
The in-built heat exchangers delivered with the air compressor, require the open cooling tower to be a well-maintained, regularly flushed and treated, to avoid accumulation of calcium carbonate and chloride ions. If not, the brazed plate heat exchanger or shell-and-tube, could fail and require urgent replacement. A gasketed plate heat exchanger can be offered as a solution, that is more durable, against the harmful effects of calcium carbonate and chloride ions.
Energy Hunter – Utilities - Boiler protection
Especially for retrofit applications, the building circuit can contain debris, mud, CaCO3 and oxygenated water. The CaCO3 can bake at 300°C plus fuel temperatures and with thermal expansion/contraction crack the boiler’s heater. Two identical buildings located side by side, one with gasketed plate heat exchanger protection and the other without, has fuel costs 30% less, as with protection, the boiler heater does not have a coating of CaCO3.
Energy Hunter – Utilities - Heat recovery from open cooling tower
This is exceptionally beneficial where heating and cooling takes place at the same plant. Typically for preheating boiler feed water close as 2°C to cooling tower return. Savings are in increased cooling tower capacity, less fuel costs for boiler operation (almost half) and less evaporation of water at the tower, hence saving water.
